#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2019 Oracle.  All Rights Reserved.
#
# FS QA Test 197
#
# Test stale and alien btrfs-device in the fs devices list.
#  Bug fixed in the kernel patch:
#   btrfs: include non-missing as a qualifier for the latest_bdev
#   btrfs: remove identified alien btrfs device in open_fs_devices
#
. ./common/preamble
_begin_fstest auto quick volume

# Override the default cleanup function.
_cleanup()
{
	$UMOUNT_PROG $TEST_DIR/$seq.mnt >/dev/null 2>&1
	rm -rf $TEST_DIR/$seq.mnt
	cd /
	rm -f $tmp.*
}

# Import common functions.
. ./common/filter
. ./common/filter.btrfs

# real QA test starts here
_supported_fs btrfs
_require_test
_require_scratch
_require_scratch_dev_pool 5
# Zoned btrfs only supports SINGLE profile
_require_non_zoned_device ${SCRATCH_DEV}

workout()
{
	raid=$1
	device_nr=$2

	echo $raid
	_scratch_dev_pool_get $device_nr
	_spare_dev_get

	_mkfs_dev $SPARE_DEV
	mkdir -p $TEST_DIR/$seq.mnt
	_mount $SPARE_DEV $TEST_DIR/$seq.mnt

	_scratch_pool_mkfs "-d$raid -m$raid" >> $seqres.full 2>&1 || \
							_fail "mkfs failed"

	# Make device_1 an alien btrfs device for the raid created above by
	# adding it to the $TEST_DIR/$seq.mnt

	# don't test with the first device as auto fs check (_check_scratch_fs)
	# picks the first device
	device_1=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}')
	$BTRFS_UTIL_PROG device add -f "$device_1" "$TEST_DIR/$seq.mnt" >> \
		$seqres.full

	device_2=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $1}')
	_mount -o degraded $device_2 $SCRATCH_MNT
	# Check if missing device is reported as in the .out
	$BTRFS_UTIL_PROG filesystem show -m $SCRATCH_MNT | \
						_filter_btrfs_filesystem_show

	$BTRFS_UTIL_PROG device remove "$device_1" "$TEST_DIR/$seq.mnt"
	$UMOUNT_PROG $TEST_DIR/$seq.mnt
	_scratch_unmount
	_spare_dev_put
	_scratch_dev_pool_put
}

workout "raid1" "2"
workout "raid5" "3"
workout "raid6" "4"
workout "raid10" "4"

# success, all done
status=0
exit
